2519779434 has 64 divisors (see below), whose sum is σ = 5355417600. Its totient is φ = 789147072.

The previous prime is 2519779393. The next prime is 2519779459. The reversal of 2519779434 is 4349779152.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1056207 + ... + 1058589.

It is an arithmetic number, because the mean of its divisors is an integer number (83678400).

Almost surely, 2^2519779434 is an apocalyptic number.

2519779434 is an abundant number, since it is smaller than the sum of its proper divisors (2835638166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2519779434 is a wasteful number, since it uses less digits than its factorization.

2519779434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its digits is 1905120, while the sum is 51.

The square root of 2519779434 is about 50197.4046540257. The cubic root of 2519779434 is about 1360.7787196148.

The spelling of 2519779434 in words is "two billion, five hundred nineteen million, seven hundred seventy-nine thousand, four hundred thirty-four".